When doing stray light analysis, it is vital to identify all objects that are seen from the detector. Dr. Bob Breault calls these "critical objects". These objects are important, because 100% of the stray light comes from them. If you can't see an object (either directly, or reflected in a mirror) then you cannot get ...(閱讀更多)

A useful ASAP® command for simulating systems where the wavefront is needed is the OPDMAP command. This command is used with a geometric ray trace, and it uses the optical path length of each ray on a surface to determine the shape of the wavefront. This is a traditional technique used in most classical lens ...(閱讀更多)

Often, an illumination system is required to meet a specific far-field intensity distribution. The engineer needs to know how many lumens are required to produce this pattern in order to determine if the proposed design approach is feasible. You can use ASAP® to determine the lumens using the following method: Create a text file that ...(閱讀更多)

When your geometry is very complicated, or your ray trace causes confusion in your cohorts, it may be possible to clarify yourself using text labels in ASAP®. Text labels are created using an often-missed command argument, TEXT, in any of your common PLOT commands. Let's look at a script example. !! PLOT ... TEXT example ...(閱讀更多)

We often hear from our software clients that much of their effort goes into developing presentations and sharing results with other members of their teams. If you find yourself presenting results using the ASAP® 3D Viewer, there are a couple of things you may not realize that could add impact to your show. Rather than ...(閱讀更多)

Injection molded plastic parts typically have ripples on the surface that result from hand polishing the tool, sinking of the plastic, etc. This can be referred to as slope error tolerance where the slope error is the deviation of the normal at any point on the injection-molded part when compared to the designed part. To ...(閱讀更多)

Using the AXIS and EXTREMES POSITION commands in ASAP®, one can easily find the minimum and maximum radial coordinates of rays on a given surface. This is particularly useful when you have a non-rotationally symmetric distribution of rays on a surface and would like to find the radial position of the outer or innermost rays. ...(閱讀更多)

If you are importing a lot of your geometry from outside CAD programs into ASAP®, instead of using the IGES or GTX translator to do material assignments in the geometry INR file, you can use a $DO loop in an ASAP script to make the assignment. This makes it easier to quickly change the material ...(閱讀更多)